the application is not connecting to my email

the application shows that it was not possible to connect to the server

You need to provide some details in order for anyone to try to help you:

  • phone manufacturer

  • android version

  • K-9 version

  • incoming mail server name

    • imap/pop
    • security/port
    • authentication [type]
  • outgoing mail server name

    • security/port
    • require sign-in ?
      – if yes:
      • authentication [type]

I already managed to solve it, I had to allow it in the Google account